feat: add vite-layers

vite-layers/bin/vite-layers.mjs

@@ -0,0 +1,20 @@
+#!/usr/bin/env node
+// CLI for vite-layers. Loads the TypeScript source via jiti (no build step needed).
+import { fileURLToPath } from 'node:url'
+import { dirname, resolve } from 'node:path'
+import { createJiti } from 'jiti'
+
+const here = dirname(fileURLToPath(import.meta.url))
+const jiti = createJiti(import.meta.url)
+
+const [cmd, appArg] = process.argv.slice(2)
+
+if (cmd !== 'prepare') {
+  console.error('Usage: vite-layers prepare [appDir]')
+  process.exit(cmd ? 1 : 0)
+}
+
+const appDir = resolve(process.cwd(), appArg ?? '.')
+const { writeTsConfig } = await jiti.import(resolve(here, '../src/tsconfig.ts'))
+const file = await writeTsConfig(appDir)
+console.log(`vite-layers: wrote ${file}`)